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# Copyright (C) 2013 Google Inc. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
import datetime
import logging
import webapp2
from google.appengine.ext import ndb
from google.appengine.ext.webapp import template
# A simple log server for rebaseline-o-matic.
#
# Accepts updates to the same log entry and shows a simple status page.
# Has a special state for the case where there are no NeedsRebaseline
# lines in TestExpectations to avoid cluttering the log with useless
# entries every 30 seconds.
#
# Other than that, new updatelog calls append to the most recent log
# entry until they have the newentry parameter, in which case, it
# starts a new log entry.
LOG_PARAM = "log"
NEW_ENTRY_PARAM = "newentry"
NO_NEEDS_REBASELINE_PARAM = "noneedsrebaseline"
NUM_LOGS_PARAM = "numlogs"
BEFORE_PARAM = "before"
class LogEntry(ndb.Model):
content = ndb.TextProperty()
date = ndb.DateTimeProperty(auto_now_add=True)
is_no_needs_rebaseline = ndb.BooleanProperty()
def logs_query():
return LogEntry.query().order(-LogEntry.date)
class UpdateLog(webapp2.RequestHandler):
def post(self):
new_log_data = self.request.POST.get(LOG_PARAM)
# This entry is set to on whenever a new auto-rebaseline run is going to
# start logging entries. If this is not on, then the log will get appended
# to the most recent log entry.
new_entry = self.request.POST.get(NEW_ENTRY_PARAM) == "on"
# The case of no NeedsRebaseline lines in TestExpectations is special-cased
# to always overwrite the previous noneedsrebaseline entry in the log to
# avoid cluttering the log with useless empty posts. It just updates the
# date of the entry so that users can see that rebaseline-o-matic is still
# running.
no_needs_rebaseline = self.request.POST.get(NO_NEEDS_REBASELINE_PARAM) == "on"
out = "Wrote new log entry."
if not new_entry or no_needs_rebaseline:
log_entries = logs_query().fetch(1)
if log_entries:
log_entry = log_entries[0]
log_entry.date = datetime.datetime.now()
if no_needs_rebaseline:
# Don't write out a new log entry for repeated no_needs_rebaseline cases.
# The repeated entries just add noise to the logs.
if log_entry.is_no_needs_rebaseline:
out = "Overwrote existing no needs rebaseline log."
else:
out = "Wrote new no needs rebaseline log."
new_entry = True
new_log_data = ""
elif log_entry.is_no_needs_rebaseline:
out = "Previous entry was a no need rebaseline log. Writing a new log."
new_entry = True
else:
out = "Added to existing log entry."
log_entry.content = log_entry.content + "\n" + new_log_data
if new_entry or not log_entries:
log_entry = LogEntry(content=new_log_data, is_no_needs_rebaseline=no_needs_rebaseline)
log_entry.put()
self.response.out.write(out)
class UploadForm(webapp2.RequestHandler):
def get(self):
self.response.out.write(template.render("uploadform.html", {
"update_log_url": "/updatelog",
"set_no_needs_rebaseline_url": "/noneedsrebaselines",
"log_param": LOG_PARAM,
"new_entry_param": NEW_ENTRY_PARAM,
"no_needs_rebaseline_param": NO_NEEDS_REBASELINE_PARAM,
}))
class ShowLatest(webapp2.RequestHandler):
def get(self):
query = logs_query()
before = self.request.get(BEFORE_PARAM)
if before:
date = datetime.datetime.strptime(before, "%Y-%m-%dT%H:%M:%SZ")
query = query.filter(LogEntry.date < date)
num_logs = self.request.get(NUM_LOGS_PARAM)
logs = query.fetch(int(num_logs) if num_logs else 3)
self.response.out.write(template.render("logs.html", {
"logs": logs,
"num_logs_param": NUM_LOGS_PARAM,
"before_param": BEFORE_PARAM,
}))
routes = [
('/uploadform', UploadForm),
('/updatelog', UpdateLog),
('/', ShowLatest),
]
app = webapp2.WSGIApplication(routes, debug=True)
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